Can Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) Live Together?
Keeping Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 15000 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago)?
Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.
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Behaviour & Temperament
Chao Phraya Giant Catfish (Paroon Shark) is a semi-aggressive species (8/10), while Freshwater Shark (Wallago) is highly aggressive (10/10). This modest difference means Freshwater Shark (Wallago) may occasionally assert dominance over Chao Phraya Giant Catfish (Paroon Shark).
Both Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) are highly aggressive, increasing the risk of violent confrontations.
Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) both frequent the Middle (Open Water) and Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Worth noting: Chao Phraya Giant Catfish (Paroon Shark) is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.
Both fish can tolerate a pH between 6.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 2–15 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) together, plan for an aquarium of at least 15000 litres with a minimum length of 600 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Smooth Gravel (Sensitive Barbels), Sand (Sifters). Meeting these requirements will help both species thrive.
Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.
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Frequently Asked Questions
Can Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 15000 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) need?
A minimum of 15000 litres (tank length at least 600 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.
What water temperature is best for Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) together?
Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Chao Phraya Giant Catfish (Paroon Shark) or Freshwater Shark (Wallago) aggressive?
Chao Phraya Giant Catfish (Paroon Shark) is semi-aggressive (8/10) and Freshwater Shark (Wallago) is highly aggressive (10/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Chao Phraya Giant Catfish (Paroon Shark) and Freshwater Shark (Wallago) need?
Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
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